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AM186EM Datasheet, PDF (79/98 Pages) List of Unclassifed Manufacturers – MICROCONTROLLER BLOCK DIAGRAM
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PRELIMINARY
SWITCHING CHARACTERISTICS over COMMERCIAL operating range
Interrupt Acknowledge Cycle (33 MHz and 40 MHz)
Parameter
No. Symbol
Description
General Timing Requirements
1
tDVCL Data in Setup
2
tCLDX Data in Hold
General Timing Responses
3
tCHSV Status Active Delay
4
tCLSH Status Inactive Delay
7
tCLDV Data Valid Delay
8
tCHDX Status Hold Time
9
tCHLH ALE Active Delay
10
tLHLL ALE Width
11 tCHLL ALE Inactive Delay
12
tAVLL
AD Address Invalid to ALE
Low(a)
15 tCLAZ AD Address Float Delay
19
tDXDL DEN Inactive to DT/R Low(a)
20 tCVCTV Control Active Delay 1(b)
21 tCVDEX DEN Inactive Delay
22 tCHCTV Control Active Delay 2(c)
23 tLHAV ALE High to Address Valid
31 tCVCTX Control Inactive Delay(b)
68
tCHAV
CLKOUTA High to A Address
Valid
Preliminary
33 MHz
40 MHz
Min
Max
Min
Max
8
5
3
2
0
15
0
12
0
15
0
12
0
15
0
12
0
0
15
12
tCLCL – 10 = 20
tCLCL – 5 = 20
15
12
tCLCH
tCLCH
tCLAX = 0
15
tCLAX = 0
12
0
0
0
15
0
12
0
15
0
12
0
15
0
12
10
7.5
0
15
0
12
0
15
0
10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes:
All timing parameters are measured at 1.5 V with 50 pF loading on CLKOUTA unless otherwise noted. All output test conditions
are with CL = 50 pF. For switching tests, VIL = 0.45 V and VIH = 2.4 V, except at X1 where VIH = VCC – 0.5 V.
a Equal loading on referenced pins.
b This parameter applies to the INTA1–INTA0 signals.
c This parameter applies to the DEN and DT/R signals.
Am186/188EM and Am186/188EMLV Microcontrollers
79
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